Car Key Fob Repairs
Key fobs of today are more than just a way to unlock and start vehicles. This added complexity can lead to expensive repair bills in the event that it malfunctions.
The positive side is that many fobs use flat watch-style batteries that are simple to replace at home. You may even find that a reset can bring it back to life.
Battery Replacement
The most common reason a key fob stops working is because of a dead battery. It's a simple solve and is worth a try before you spend money on a replacement fob. Simply take your car to a local auto parts store or hardware retailer that carries button cell batteries and purchase the replacement. You can also refer to the owner's manual (or in the case that you don't have one, YouTube is full of videos from people who show you how to do it) for specific instructions on opening and replacing the battery on your particular type of fob.
The majority of fobs have two halves that snap together -you'll have to gently pry the sides apart to get to the battery. You'll typically need a small screwdriver or some other tool equipped with a thin, flat blade. You can insert your tool into a notch on the bottom of the key fob. You might also want to look out for tiny pieces that might break loose as you work.
Insert the new battery the same manner as you removed the previous one. Make sure the positive (+) side is facing up toward the buttons, and that the negative (-) side of the battery is aligned with the markings inside the battery compartment of your fob.
You can push a button to test the fob. If it doesn't work, there could be an issue with your vehicle that requires a professional to repair or replace.
Certain key fobs require special tools to open and close them, and the contacts inside can be fragile and susceptible to corroding. In these cases, the best option is to talk to a expert or a dealer. When replacing a battery be gentle and follow your owner's instructions. You might be able to find a battery similar at a big-box store or discounter, however, make sure you read the owner's manual to make sure it is compatible with your vehicle.
Replacing the Internal Key
The majority of key fobs have an actual mechanical key, but it's hidden inside the fob to prevent thieves. When the fob battery dies it will leave an internal key that is blank which can open trunks and doors (and in some cases start certain vehicles). Most people don't know this however, they can avoid from a trip to the dealer by simply replacing the fob's battery. Most modern fobs have flat-watch-style batteries which can be found at hardware stores and auto parts shops. It is essential to choose the correct type of battery. A wrong battery can harm the circuitry and lead to the fob to fail much earlier.
If the problem persists after you replace the battery, it could be a sign that something else is going on in your vehicle. If you have an owner's manual look for there is a reset option available to restore the fob's original programming. If how to repair car key lock fails, you'll need visit a dealership or a shop independent that specializes in vehicle-security systems and key fob programming.
Fobs may also fail due to malfunctioning transmitter receivers. They are typically placed on the dashboard or close to the steering wheel, and transmit signals that allow you to unlock and start your car using the fob. If you notice that you're having to get closer and closer to your vehicle to get it to work, there's a great possibility that the transmitter is not working.
A professional might need to open the fob's case to replace the transmitter. A simple screwdriver can usually do the job however some fobs come with complex release mechanisms that require a specialized tool or specialized equipment that is available only at a dealership. This job should be performed by a certified mechanic to avoid damaging the fob and yourself.
Reprogramming the Key
A key fob that's not working may simply need a new battery. These batteries are easily found in home improvement and pharmacy stores and are cheap. This is a great way to start before buying a new key fob.
You can also re-program your key fob by yourself if you follow the steps below. This process varies between vehicle makes, so it's important to read the owner's manual and study the specifics of your particular model. For example, one key fob may require that the ignition be on while reprogramming it. A key fob might require the key to be inserted several times.
The basic procedure is simple. Make sure the battery is securely in place. Then, get into the driver's seat, and close all doors, with the exception of the driver's side door. This will ensure that the new key fob is communicating with the vehicle in a proper manner. Then, put the old key back in the ignition and turn it to the ON position, but don't start the engine. Press the lock button while aiming the fob at the receiver for transmission. This is typically located on the front above the mirror. The key will notify the vehicle within a short amount of time that it's being programmed. This can be accomplished by turning the door locks, or emitting an audible chime. This can be a difficult process and it's crucial to be attentive to the timing and not to over-press the key button.

If the key fob still doesn't work try reprogramming it with fresh batteries. If the issue isn't resolved then a visit to your dealer for your car or a locksmith should be considered. A professional locksmith will have the tools and equipment necessary to re-program your car's fob, or create the key if needed.
Genesky says he's able to program newer fobs at around $200 to $250, based on the model of vehicle. He's been denied European models rejected because they don't have the equipment needed. Fortunately, many aftermarket fobs can be programmed but it's always best to talk to an auto dealer first to determine what the cost is.
How do I get a new fob
If the key fob you have cannot be repaired, you might require a new one. Depending on the model and make, an auto locksmith or a dealership may be able to help. The dealership will likely be the most expensive option for a replacement fob However, they'll have the necessary tools and software needed to program your vehicle correctly. If you're looking for a cheaper option, a number of independent locksmiths can provide you with an entirely new car key fob for a much more reasonable price.
It's a good idea to attempt to reset your current device before you decide to buy a new one. The owner's manual should outline the correct method of reset. It is typically an orderly press that reset the factory program.
It is an excellent idea to check your owner's manual as well as warranty information prior to deciding which place to go for a key fob replacement. If your car's warranty is still in effect or you have an auto club or car insurance policy that covers bumper to bumper you could qualify for a reimbursement on the cost of a replacement fob.
Getting a fob is easy enough, but finding the right location to get it done can be tricky. If you have a relatively new car and would like the security from knowing that your key fobs are in working order, you may be better off visiting the dealership to get this service. If you're looking for a cheaper alternative, it is possible to find a locksmith who will offer the same service for an affordable cost.
A professional locksmith is a great choice if you're not comfortable doing this type of work. They are trained and equipped to reprogram or replace the majority of car key fobs, and often, they can complete the task quickly. In addition, a locksmith can often come to your workplace or home to do the job which is useful for certain people. They can even cut and program keys on the spot if you have lost keys, which is great for those who do not want to leave their cars unattended.